Which kingdom consists of multicellular eukaryotic heterotrophs whose cells lack cell walls?

Which kingdom consists of multicellular eukaryotic heterotrophs whose cells lack cell walls?

• A. Protista
• B. Fungi
• C. Plantae
• D. Animalia

Answer: (D)

The statement describes organisms that are multicellular, eukaryotic, obtain nutrients by consuming other organisms (heterotrophs), and lack cell walls. This combination is characteristic of the animal kingdom. Animals are multicellular and rely on ingestion for energy, and their cells do not have rigid walls, allowing movement and flexibility. Fungi also are heterotrophs but have cell walls made of chitin, not lacking cell walls. Plants are autotrophs that produce their own food via photosynthesis and have cellulose cell walls. Protists are a diverse group, including both autotrophs and heterotrophs, with a variety of cell structures, so they don’t fit the described single pattern as cleanly.

The statement describes organisms that are multicellular, eukaryotic, obtain nutrients by consuming other organisms (heterotrophs), and lack cell walls. This combination is characteristic of the animal kingdom. Animals are multicellular and rely on ingestion for energy, and their cells do not have rigid walls, allowing movement and flexibility.

Fungi also are heterotrophs but have cell walls made of chitin, not lacking cell walls. Plants are autotrophs that produce their own food via photosynthesis and have cellulose cell walls. Protists are a diverse group, including both autotrophs and heterotrophs, with a variety of cell structures, so they don’t fit the described single pattern as cleanly.